Games like Icarus: Holdfast Outpost
Games like Icarus: Holdfast Outpost include Once Human, War Thunder, Aimlabs, ARK: Survival Evolved, and Survival: Fountain of Youth. We matched them by the tags players give Icarus: Holdfast Outpost on Steam (Simulation, Action, Adventure, Violent, and Base Building): closest matches first, and among equally close ones the better-known games.
Once Human
Shared: Action · Free to Play · Open World Survival Craft
War Thunder
Shared: Action · Simulation · Free to Play
Aimlabs
Shared: Simulation · Action · Free to Play
ARK: Survival Evolved
Shared: Open World Survival Craft · Adventure · Base Building
Survival: Fountain of Youth
Shared: Base Building · Open World Survival Craft · Simulation
The Forest
Shared: Open World Survival Craft · Adventure · Action
Green Hell
Shared: Open World Survival Craft · Action · Base Building
Raft
Shared: Open World Survival Craft · Base Building · Adventure
Mist Survival
Shared: Open World Survival Craft · Base Building · Adventure
Grounded 2
Shared: Adventure · Base Building · Action
Bum Simulator
Shared: Simulation · Action · Adventure
Grounded
Shared: Base Building · Open World Survival Craft · Adventure
7 Days to Die
Shared: Base Building · Open World Survival Craft · Adventure
Escape From Duckov
Shared: Action · Adventure · Base Building
Hard Bullet
Shared: Action · Simulation · Violent
ICARUS
Shared: Open World Survival Craft · Base Building · Simulation
God of War
Shared: Action · Adventure · Violent
Valheim
Shared: Open World Survival Craft · Base Building · Adventure
Animallica
Shared: Simulation · Adventure · Action
Dune: Awakening
Shared: Open World Survival Craft · Adventure · Base Building
SMITE®
Shared: Action · Free to Play · Simulation
Middle-earth: Shadow of War
Shared: Action · Adventure · Violent
Don't Starve Together
Shared: Open World Survival Craft · Adventure · Simulation
Schedule I
Shared: Simulation · Action · Base Building